Figure 3

The synergistic effect of DSF signal (50 μM) with gentamicin on the virulence of B. cereus in an in vitro model. Cytotoxicity was assayed by monitoring LDH release by the HeLa cells infected with a MOI of about 1000. Data shown are means of three replicates and error bars indicate the standard deviations. The differences between the samples with DSF and without DSF are statistically significant with *p < 0.05, as determined by using the Student t test.